中高温油藏微生物单井激活现场试验  

Field test of microbial single well activation inmiddle and high temperature reservoir

作　　者：谭晓明[1] 林军章[1] 唐存知[2] 毛源[2] 

机构地区：[1]中国石油化工股份有限公司胜利油田分公司石油工程技术研究院,山东东营257000 [2]中国石油化工股份有限公司胜利油田分公司河口采油厂,山东东营257000

出　　处：《生物加工过程》2016年第3期53-56,共4页Chinese Journal of Bioprocess Engineering

基　　金：国家高技术研究发展计划(863计划)(2013AA064401)

摘　　要：针对胜利油田中高温油藏微生物群落结构特点,开展室内模拟试验,对耐高温激活剂进行筛选和性能评价.室内筛选出的激活剂适应温度范围在60尤以上,该激活体系与稠油作用后乳化分散效果显著,激活后菌密度从1.3×10^5个/mL增至3×10^7-4×10^7个/mL,气压达到0.05MPa以上,原油乳化指数达到90%以上.根据室内模拟条件,对中高温油藏单井进行现场激活试验,开井后,总菌密度由激活前的104-10^5个/mL增至3.2×10^7个/mL,在有效期136d内,单井累计增油超过180t,含水率降低约15%.试验证明,室内筛选出的激活剂可以激活中高温油藏内源微生物,提高单井产油量,为实施中高温油藏微生物驱油提供理论依据和技术支持.According to the characteristics of microbial community structure of high temperature reservoir in Shengli Oilfield, the physical model test was carried out to screen and evaluate the performance of high temperature resistant activator. The activator adaptation temperature range in more than 60 ^, the emulsifying and dispersing effect was significant after the activation system reacting with the heavy oil, the activated bacteria count was increased from 1.3×10^5 cell/mL to 3 × 07-4×10^7 cell/mL and the air pressure reached more than 0. 05 MPa, crude oil emulsification index reached more than 90%.According to the physical model conditions, the activation test of single well was carreid out in the middle and high temperature oil reservoir, after opening the well, the cell density increased from 104-105 cell/mL to 3. 2×10^7 cell/mL,single well oil yield increased by more than 180 t ,moisture content decreased by about 15%. Tests show that the activated agents could activate the endogenous microbes in the middle and high temperature reservoir,increased the oil content of the single well, and provide theoretical basis and technical support for the implementation of high temperature oil reservoir microbial oil displacement.

关 键 词：中高温 油藏微生物 激活剂 单井激活 

分 类 号：TE327[石油与天然气工程—油气田开发工程]